Multiple choice

A dishonest trader claims that he sells his goods at the cost price, but weighs 900 gm for every kg that he sells. Find his profit percentage.

  1. $\displaystyle9\frac{1}{11}\%$
  2. 10%

  3. $\displaystyle11\frac{1}{9}\%$
  4. 12.5%

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The trader sells 900g but charges for 1000g. Profit = (1000 - 900) / 900 = 100 / 900 = 1/9. 1/9 as a percentage is 11.11% or 11 1/9%.

AI explanation

Using the faulty weight formula, profit percent equals error divided by actual weight given multiplied by 100. The trader gives only 900 gm instead of 1000 gm, so the error is 100 gm. This gives 100 divided by 900 multiplied by 100 to equal 11 1/9 percent. The result is 11 1/9 percent.